netdev - Re: [PATCH] openvswitch: Add missing initialization in validate_and_copy_set

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Message-ID: <20150211155738.GB29155@casper.infradead.org>
Date:	Wed, 11 Feb 2015 15:57:38 +0000
From:	Thomas Graf <tgraf@...g.ch>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	"David S. Miller" <davem@...emloft.net>,
	Pravin Shelar <pshelar@...ira.com>, netdev@...r.kernel.org,
	dev@...nvswitch.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] openvswitch: Add missing initialization in
 validate_and_copy_set_tun()

On 02/11/15 at 11:23am, Geert Uytterhoeven wrote:
> net/openvswitch/flow_netlink.c: In function ‘validate_and_copy_set_tun’:
> net/openvswitch/flow_netlink.c:1749: warning: ‘err’ may be used uninitialized in this function
> 
> If ipv4_tun_from_nlattr() returns a different positive value than
> OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS, err will be uninitialized, and
> validate_and_copy_set_tun() may return an undefined value instead of a
> zero success indicator. Initialize err to zero to fix this.
> 
> Fixes: 1dd144cf5b4b47e1 ("openvswitch: Support VXLAN Group Policy extension")
> Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>

Acked-by: Thomas Graf <tgraf@...g.ch>
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